<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>HTML5 dialog element</title>
<style>
table,th,td
{
border:1px solid black;
}
</style>
</head>
<body>

<p><b>Note:</b> The dialog tag is only supported in Chrome Canary and Safari 6.</p>

<table>
<tr>
<th>January <dialog open>This is an open dialog window</dialog></th>
<th>February</th>
<th>March</th>
</tr>
<tr>
<td>31</td>
<td>28</td>
<td>31</td>
</tr>
</table>

</body>
</html>

